Sifter sock



L. T. sEvERoN. SIFTER Sock.

' Dec. 26, 1922.

F'LED APR. 12. 1920.

III! 4 I I] I A TTORNEY Patented Dec. 25, 1922.

LOUIS r. s re se r we e anaem- SIETER, SQQK- I Application filed April 12710222. it may concern:

Be it known that l'..'LoUis T. SnvnRsoN, a citizen of United States, residingatDuuth. in the county of St. Louis and State of lvl'innesota, haveinventedicertain new and useful improvements in Sifter Socks, of which the following is a specification, refer ence being had therein to the accompanying drawing.

This invention relates to telescopic spouts for use in connection with sifting mills, which are designed especially to take the place of the common cloth stocking used for conveying granular material such as Jfiour or the like from the vibrating portion of a sitting mill to astationary or other receptacle.

The principal object of the invention is to provide a. simple and durable spout of the character described and one that will answer every purpose of the cloth stocking.

Other objects and advantages will appear in. the further description of the invention.

Referring to the accompanying drawings forming part of this application and in which like reference characters indicate like parts:

Fig. 1 is a side elevation of one of my improved spouts.

Fi 2 is an end elevation. partly in section of one of the serrated ends of the telescopic sections of the spout.

Fin: 3 is a vertical central section of Fig. 1.

The main body portion of the spout comprises the internal section 1 and the external section 2, the former being flared outwardly t its upper end as at 3 and terminatingin an annular hand-like portion 4t, the upper edge of which is serrated or toothed as at 0, said serrations being bent slightly inwardly distinctly shown in Fig. filfor the purpose of impinging and holding securely in place the annular felt washer indicated at 5. the felt washer having previously been placed in the ring; cap 6, which latter has a central circular openingtherein for the reception of the approximately semi-spherical end 7 of the sleeve 8 to which it is securely fixed. The sleeve 8 is removably attached to the nipple 9 by suitable bayonet slots 10 and pins 1.1 as shown in Fig. 1-, or any other convenient means desired, and the nipple 9 is secured to the vibrating portion 12 of 1920. s ri in. 373,975;-

the mechanism to which the spout is attached.

The diameter of the; sleeve 8 is somewhat less than the opening in'the top of the cap ('rso'that "a portion of the ean-shapecrena appears above the cap 'ti when suspended therefronn thus forming a joint "somewhat sinnlamo a balland socketjoint.

*Tll'ie' cap" 6 holds suspended therefrom all thatportion of the spout therebelow,'b v means of the bayonet slots 13 in which the pins l lin the band a register, and such connection is easilysevered by the reverse turning of the cooperative parts, as is ob-.

vious.

On the diametrically opposed outer walls of the flaring portion 3 are fixed suitable hooks 15 from which are suspended contractile spiral springs 16, the lower ends of which are engaged in'hooks similar to the hooks 1 5, fastened to the opposite sides of the telescopi'csleeve 2, and this, latter has formed upon the lower end thereof a subntialiy semi-spherical member 17 similar to the member 7, which is surrounded by a cap 18 similar to the cap 6, which is attachefi to the upper termination 19 of the daring end 20 of the sleeve 21 by bayonet slots 22 and pins 23, in all respects similar to the uppermost connection of the tube just described. c

There is a felt washer 2 carried within the cap 19 which engages the outer surface of theball 17, the same being; held in place by means of the serrated upper edge of the term nation 19 of the depending sleeve 21 which is attached to the fixed portion 25 of the stationary receiving receptacle whatever it may be.

From the foregoing it is evident that I have provided a. flexible tubular connection between a reciprocable member and a stationary member said connection being composed of a'plurality of rigid portions the centermost ones of which are vertically yieldable to accommodate varying distances intermediate of the reciprocable and stationary members,

In putting my invention into practice it 1s intended to make the balls 7 and 17 of a hard smoothly surfaced metal so that frictional resistance with the felt or other like wash ers is as little as possible and still form atightreadily yieldable joint and by providing convenient means for separating the parts of the device either or both or the washers i3 and 24 may be easily renewed when worn.

I am aware that somewhat similar devices hare been employed in the art but believe that the specifically disclosed features in my invention which are particularly set forth in the appended claims are a material improvement over thatpreviously known.

Having thusdescribed my invention, what I claim as new and desire to secure by Letters Patent is: 4 v

1. A resilient tube of the character described comprising in combination separable tubular connections, a ball and socket joint in one of the connections, a cap member surrounding the ball of the joint and carrying a resilient washer therein for engagement with the ball, a tube extending within the cap having its uppermost edge serrated for holding engagement against the washer.

2. A resilient tube of the character described comprising in combination separable tubular connections, a ball and socket joint in one of the connections, a cap member surrounding the ball of the joint and carrying a resilient washer therein for engagement with the ball, a tube extending within-the cap having inwardly protruding means for engagement with the washer.

In testimony whereof I hereunto aflix my signature in the presence of two witnesses.

LOUIS T. SEVERSON. 

